Vortex 821ZK-42 CAT5 Aluminum Rear Sprocket 42-Tooth

The Vortex 821ZK-42 is a high-performance CAT5 aluminum rear sprocket designed for serious motorcycle enthusiasts and racers. This 42-tooth sprocket combines lightweight construction with exceptional durability and Vortex's signature race-proven design features.

Key Features:

• 42-tooth configuration for optimized gearing performance
• Lightweight CAT5 aluminum construction reduces unsprung weight
• 100% CNC manufactured in the USA to exacting tolerances
• Color anodized finish with contrasting silver machine cuts for distinctive appearance
• Patented tooth design with saber tooth grooves increases sprocket longevity
• Specially formulated aluminum alloy per Vortex specifications
• Corrosion-resistant anodized finish for long-lasting protection
• Unique tooth profile design reduces chain wear and extends service life

Vortex Racing has built a reputation on absolute quality and precision engineering. Each CAT5 aluminum sprocket undergoes rigorous testing with feedback from professional race teams worldwide. The 821ZK series features Vortex's patented sprocket design that is unlike any other sprocket on the market, delivering superior performance in demanding riding conditions. The colored anodizing excludes teeth and machine cuts, creating a bright flash of color with silver highlights that stands out on any bike.